bring katran to liberica
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	Vgutierrez
	Nov 21 2024, 9:40 AM

Description

Add support for katran as a forwarding plane

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Related Changes in Gerrit:

Subject	Repo	Branch	Lines +/-
Revert "liberica: Don't deploy ipip-multiqueue-optimizer with katran"	operations/puppet	production	+2 -9
liberica: Don't deploy ipip-multiqueue-optimizer with katran	operations/puppet	production	+9 -2
liberica: Add katran config settings	operations/puppet	production	+33 -2

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Status	Assigned	Task
Open	Vgutierrez	T332027 Replace current L4LB with with Katran-based alternative
Resolved	Vgutierrez	T380450 bring katran to liberica
Resolved	Vgutierrez	T393903 control plane should fetch default gateway MAC address dynamically

Event Timeline

Vgutierrez created this task.Nov 21 2024, 9:40 AM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptNov 21 2024, 9:40 AM

Vgutierrez triaged this task as High priority.Nov 21 2024, 9:40 AM

Vgutierrez moved this task from Backlog to Actively Servicing on the Traffic board.

vgutierrez opened https://gitlab.wikimedia.org/repos/sre/liberica/-/merge_requests/77

fp: basic katran support

vgutierrez opened https://gitlab.wikimedia.org/repos/sre/liberica/-/merge_requests/78

fp/katran: Add mh/mh-port support

As noticed while working on https://gitlab.wikimedia.org/repos/sre/liberica/-/merge_requests/87, liberica needs to populate the lru_mapping eBPF map to avoid letting katran fallback to the global LRU:

# HELP liberica_fp_katran_fallback_global_lru_total Number of times that katran failed to find the per cpu/core lru, it should be 0 in production
# TYPE liberica_fp_katran_fallback_global_lru_total counter
liberica_fp_katran_fallback_global_lru_total 12006

vgutierrez merged https://gitlab.wikimedia.org/repos/sre/liberica/-/merge_requests/77

fp: basic katran support

vgutierrez merged https://gitlab.wikimedia.org/repos/sre/liberica/-/merge_requests/78

fp/katran: Add mh/mh-port support

Maintenance_bot removed a project: Patch-For-Review.Jan 7 2025, 12:30 PM

vgutierrez opened https://gitlab.wikimedia.org/repos/sre/liberica/-/merge_requests/88

Add Katran per CPU LRU support and allow spawning the fp daemon using katran

Change #1113961 had a related patch set uploaded (by Vgutierrez; author: Vgutierrez):

[operations/puppet@production] liberica: Add katran config settings

https://gerrit.wikimedia.org/r/1113961

Vgutierrez closed this task as Resolved.Jan 24 2025, 10:12 AM

Is there a task for tracking Katran deployment for high-traffic lvsen/libericas?

not yet, I'm planning to work on that as soon as next week starting with ncredir@eqiad that runs a dedicated liberica instance, I'll keep you posted <3

CDanis awarded a token.May 9 2025, 8:59 PM

Vgutierrez closed subtask T393903: control plane should fetch default gateway MAC address dynamically as Resolved.May 20 2025, 1:12 PM

Change #1113961 merged by Vgutierrez:

[operations/puppet@production] liberica: Add katran config settings

https://gerrit.wikimedia.org/r/1113961

Change #1148337 had a related patch set uploaded (by Vgutierrez; author: Vgutierrez):

[operations/puppet@production] liberica: Don't deploy ipip-multiqueue-optimizer with katran

https://gerrit.wikimedia.org/r/1148337

Change #1148337 merged by Vgutierrez:

[operations/puppet@production] liberica: Don't deploy ipip-multiqueue-optimizer with katran

https://gerrit.wikimedia.org/r/1148337

Change #1153985 had a related patch set uploaded (by Vgutierrez; author: Vgutierrez):

[operations/puppet@production] Revert "liberica: Don't deploy ipip-multiqueue-optimizer with katran"

https://gerrit.wikimedia.org/r/1153985

Change #1153985 merged by Vgutierrez: